Dashboard: Insight dialog bugs

[abist]

• SQL Operations Studio Version: master

Steps to Reproduce:

1. Open any server dashboard.
2. Edit the Backup widget by clicking on the ... button on the top right of the widget and click on Show Details.

Expected - A list of Items and corresponding Item Details should be open in the Insights Dialog
Actual -

• A list of items show up but the Item Details is collapsed. Screenshot -

• Clicking on Item Details send Item Details to the bottom. Needs to be clicked again so that it pops out. Screenshot -

• Item Details does not change when an item from the Item list is highlighted or focused.
  

It needs to be clicked twice again (because of bug #2 where Item Details just sits at the bottom) to update.

• Critical
  Pressing Esc when there's focus on any of the items in the Items list in the Insight Dialog will crash the app with the following error -

TypeError: Cannot read property 'style' of null
    at Builder.doSetStyle (Users/adbist/Desktop/SQL_Tools/sqlopsstudio/out/vs/base/browser/builder.js:482)
    at Builder.style (Users/adbist/Desktop/SQL_Tools/sqlopsstudio/out/vs/base/browser/builder.js:469)
    at Button.applyStyles (Users/adbist/Desktop/SQL_Tools/sqlopsstudio/out/vs/base/browser/ui/button/button.js:100)
    at Users/adbist/Desktop/SQL_Tools/sqlopsstudio/out/sql/base/browser/ui/modal/modal.js:240
    at Array.forEach (<anonymous>)
    at InsightsDialogView.Modal.hide (Users/adbist/Desktop/SQL_Tools/sqlopsstudio/out/sql/base/browser/ui/modal/modal.js:240)
    at InsightsDialogView.close (Users/adbist/Desktop/SQL_Tools/sqlopsstudio/out/sql/parts/insights/browser/insightsDialogView.js:293)
    at InsightsDialogView.onClose (Users/adbist/Desktop/SQL_Tools/sqlopsstudio/out/sql/parts/insights/browser/insightsDialogView.js:298)
    at HTMLDocument.<anonymous> (Users/adbist/Desktop/SQL_Tools/sqlopsstudio/out/sql/base/browser/ui/modal/modal.js:220)

instead of closing the dialog.